Contourite sedimentation in the Alboran Seamorphosedimentary characterization
- G. Ercilla 1
- C. Juan 1
- F. Estrada 1
- D. Casas 1
- B. Alonso 1
- M. García 1
- M. Farran 1
- D. Palomino 2
- J.T. Vázquez 2
- E. Llave 3
- F.J. Hernández-Molina 4
- T. Medialdea 3
- C. Gorini 5
- E. D Acremont
- B. El Moumni 6
- B. Gensous 7
- M. Tesson 7
- A. Maldonado 8
- A. Ammar 9
- 1 Institut de Ciències del Mar, CSIC
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2
Instituto Español de Oceanografía
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3
Instituto Geológico y Minero de España
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- 4 Facultad de Ciencias, Universidad de Vigo
- 5 Université Pierre et Marie Curie-Paris 6
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6
Abdelmalek Essaâdi University
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- 7 Université Perpignan
- 8 Instituto Andaluz de Ciencias de la Tierra, C.S.I.C.
- 9 Université Mohammed V-Agdal Rabat, Marruecos
ISSN: 1576-5172
Year of publication: 2012
Issue Title: VIII Congreso Geológico de España, Oviedo, 17-19 de julio, 2012.
Issue: 13
Pages: 1809-1812
Type: Article
More publications in: Geotemas (Madrid)
Abstract
This paper presents a new view of recent sedimentation in the Alboran Sea, based on the analysis of the largest database of available seismic profiles in that sea. The results reveal that contourites represent the main morphosedimentary features that characterize the margins and basins. Several types of contourite features have been characterized, both depositional (plastered, sheeted, elongated-separated, confined, and channel-related) and erosive (moats, terraces and furrows). These elements are interrupted by the construction of turbidite fans, mainly in the Spanish margin, and by sedimentary instabilities that locally affect to the open slope, Alboran Ridge and morphological highs. This new morphosedimentary view of the Alboran Sea reveals for the first time the important role of along slope processes (transport, sedimentation and erosion) associated with Mediterranean water masses.